When performing the microhematocrit test, if blood contains anticoagulant, how far
up should the capillary tube re filled with blood?
a. One forth.
Measuring the microhematocrit test, when blood is allowed to enter the two
capillary tubes to approximately 2/3 full and air bubbles appear, what does this
a. A poor technique was used but it does not affect the results of the test.
b. The heparinized capillary tube line was passed.
The tubes were dirty.
d. The seal was broken.
At what rpm and for how long are the 2 hematocrit tubes centrifuged for the
a. 4,000 rpm; 2 minutes.
b. 5,000 rpm; 4 minutes.
10,000 rpm; 5 minutes.
d. 15,000 rpm; 7 minutes.